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Elastic Docs ›Elastic Security Solution [8.8] ›Detections and alerts ›Prebuilt rule reference

Persistence via Login or Logout Hook

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Persistence via Login or Logout Hook

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Identifies use of the Defaults command to install a login or logoff hook in MacOS. An adversary may abuse this capability to establish persistence in an environment by inserting code to be executed at login or logout.

Rule type: eql

Rule indices:

  • logs-endpoint.events.*

Severity: medium

Risk score: 47

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

  • Domain: Endpoint
  • OS: macOS
  • Use Case: Threat Detection
  • Tactic: Persistence
  • Data Source: Elastic Defend

Version: 106

Rule authors:

  • Elastic

Rule license: Elastic License v2

Rule query

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process where host.os.type == "macos" and event.type == "start" and
 process.name == "defaults" and process.args == "write" and process.args : ("LoginHook", "LogoutHook") and
 not process.args :
       (
         "Support/JAMF/ManagementFrameworkScripts/logouthook.sh",
         "Support/JAMF/ManagementFrameworkScripts/loginhook.sh",
         "/Library/Application Support/JAMF/ManagementFrameworkScripts/logouthook.sh",
         "/Library/Application Support/JAMF/ManagementFrameworkScripts/loginhook.sh"
       )

Framework: MITRE ATT&CKTM

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